I just had a very short conversation with one of the racers at the track.
The layout is very technical and it will be difficult to be consistant. A lot of steering is required by the cars as well as stability through the tight esses.
As it is not a "power" track, for the time being they are focusing on set up and not motor performance.
Unfortunatelly he was too busy and cannot comment on who is most impressive for the time being, but it is still very early. Later in the afternoon I might have more info..